Improvement in vises for carpenters  benches



UNTTnn STA-Tas PATENT irren@ WM. H. CUTTER', OF'ST. LOUIS, MISSOURI.

IMPROVEMENT IN VISES FOR CARPENTERSl BENCHES.

Specification forming part of Letters Patent No. 52,689, dated February20, 1866.'

To all whom it may concern:

Be it known that .'I, WILLIAM H. CUTTER, ot' St. Louis, in the county ofSt. Louis and State ot' Missouri, have invented a new and usefulImprovement in Bench-Vises; and l do hereby declare that the followingis a full, clear, and exact description thereof, which will enableothers skilled in the art to make and use the same, reference being hadto the accompanying drawings, forming part ot' this specifica-tion.

rIhe drawing, consisting ot' only one gure, represents a vise madeaccording to my invention and applied to a work-bench.

This invention consists in a novel mode of making a parallel vise for awork bench, wherein the movable jaw is attached near its lower end to abar which is parallel with the screw which operates the vise, the innerend of said har and the inner end of the screw being let into an uprightbar which is parallel with the movable jaw. rIhe upright bar is held upagainst shoulders formed on the tirstnamed bar and on the screw by meansoftwo chains or their equivalents, which connect the upright bar withthe movable jaw.

A designates a work-bench, and B a movable jaw, operated by a screw, C,working through the front of the bench. The inner end ot' the screw ismade smooth, and is let into an upright bar, E, so that it may turntherein, the bar being allowed to come up to a shoulder formed on thescrew, against which shoulder it is held by a band or chain, ashereinafter explained. A

To the lower end of the movablejaw B is iixed a bar, D, which extendsthrough a slot in the front of t-he bench in a direction parallel withthe screw. n

The inner end of the bar D is jointed by a loose tenon-and-mortise jointto the lower end of the upright ybar E, which comes up to and is heldagainst a shoulder formed on the bar D by another band or chain, ashereinafter explained.

The upright bar E is sustained upon the ends of the screw B and bar D,having no other support, and is carried to and fro with them.

Upon the inside face of the front of the bench are brackets G Gr, onedirectly above the other. The upper bracket is placed beneath the screw,but as near to it as can conveniently be done, while the lower one isplaced above and near to the horizontal bar D. These brackets each carrya doublegrooved pulley, F, over which are passed chains or bands H I,whose ends are fastened to the movable jaw and to the upright bar E.

The band or chain H is fastened to the inner side of the movable jaw atabout the same elevation as that of the upper pulley, and is carriedthence through the front of the bench over the upper pulley, thencedown, in frontot' and beneath the lower pulley, thence toward theupright bar E, to which it is connected by means of an adjustableeyebolt or hook, J, which passes through the bar.

vThe shank ot' the eyebolt hasa screw-thread cut on it, and anut andwasher are placed thereon behind the bar, so that the bolt can be drawnwhenever it is desired to tighten the band or chain H. The band or chainH runs in those grooves of the pulleys which are on the same side ofsaid pulleys, and therefore in the same vertical plane. 'lhc band orchain is attached to the leg of the movable vise at a point opposite thelower pulley, and is vtaken thence under and around said pulley, thenceupward in front of and around the upper pulley, runnin g in theunoccupied grooves of said pulley, thence toward the upright bar E, withwhich it is connected, as in the case of the band or chain H, by aneyebolt or hook, J, whose screw-threaded shank passes through that bar,and is adjustable therein by means ot' a nut working' on said shank. Itwill be observed from this construction that the movable vise, the barE, the screw, and the bar D from a parallellogram, and that they are allmoved together by means of the rotation ot' the screw G, and that theirparallelism is secured by means ot' the manner in which they arearranged and connected together, and also by means of the bands orchains H I, the band -or chain H being connected to the upper part ofthe vise and to the lower part of the upright parallel bar E, and theband or chain I being connected to the lower part ot' the vise and tothe upper part of said bar, so that the motion of the vise iscommunicated with exactness to the bar E. The said bar E is held in itsplace in the body or frame, made as above described, claim as new anddesire to secure by Letters by the bands or chains and eyebolts or hooksPatent and their nuts, and any nnevenness or sagging A parallel vise forWork-benches constructed of the parts can be compensated by drawing andarranged substantially as above described.

up or lettingout one of said bands or chains. My improvement can bereadily applied to WILLIAM H' GUTTER' an old bench-vise, and the severalparts of the Witnesses: vise can be made of any suitable material. E. C.DAVIS,

Having thus described my invention, I l JOSEPH DICKSON. "1

